Final 1 - Ceramic terms Flashcards
(44 cards)
Art and technology of making objects of lay treated with intense fire so that clay = hard
Ceramics
A granite-type decomposed rock that contains minerals and organic matter is?
Clay
Stages of clay (from wettest to driest)
- Slip (mud)
- Plastic
- Soft leather
- Medium leather
- Firm leather
- Bone dry
What stage of clay should be used to roll coils?
Soft plastic
Clay that is dry enough not to stick to your fingers, but soft enough to work without cracking.
Plastic
Clay that is completely dry, whitish in color, very fragile and breaks easily.
Bone dry
Shaping clay by squeezing between the thumb and fingers.
Pinch
Rolling clay into rope-like strips which can be joined to make pots, bowls, and sculptures.
Coils
Clay is rolled or pressed into a sheet like piece and then joined or formed.
Slab
A special heat resistant oven that is used to fire clay at extremely high temperatures.
Kiln
A glassy coating composed of primarily silica (sand) and forms a waterproof surface.
Glaze
The technique of roughening pieces of clay with a needle tool prior to joining.
Scoring
A soupy mixture of clay and water. It is applied to scored surfaces before joining.
Slip / Mud
Joining clay by scoring, adding slip, applying a small coil of clay over the seam, and smoothing the clay over the seam to prevent parting is called?
Welding
Used in ceramics to carry, store, and transfer a piece that is in the building stage.
Bats
Unfired clay objects are called?
Greenware
Clay that has been fired once is called?
Bisque
The act of folding and pressing clay over on itself in order to mix clay and eliminate air bubbles from the clay body.
(It’s like kneading dough to make bread)
Kneading
Mixing and de-airing clay by cutting it diagonally and slamming the pieces together.
(Slamming it down on the mat — used when trying to piece smaller chunks of clay into one giant blob)
Wedging
The first firing step in the process of creating ceramics (if keeping). A bisque piece is hard and very strong, and can no longer be reverted to the plastic state. After this stage, the ware is ready for a final glaze fire.
Bisque fire
The last fire that has glaze applied.
Glaze fire
Creating something that appears neat and professional looking requires time and attention to details.
Craftsmanship
True or False?
A bag is unnecessary. As long as your locker door is closed, your project will not dry.
False - It will dry if you don’t cover it!
True or False?
What percentage of clay is water? 12%?
True!